/Engine/Source/Runtime/GeometryCore/Public/Spatial/SparseDynamicPointOctree3.h
Insert PointID into the Octree. Dynamically expands cells that have more than MaxPointsPerCell
void InsertPoint_DynamicExpand ( int32 PointID, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< FVector3d(int)> GetPositionFunc )